Filter



FIG. 1 is a top front perspective view of a filter of our new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a front elevation thereof. The right, rear, and left side elevation views are mirror images of the front elevation; and,

FIG. 4 is a cross-sectional side elevation view thereof taken substantially along line 4-4 of FIG. 2.

The broken lines are shown for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a filter, as shown and described herein. 